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Home  >>  ISC XII Math  >>  Model Papers
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The following table shows the sales and advertisement expenditure of a firm :

  Sales (Rs. in crores) Advertisement Expenditure (Rs. in crores) Mean Standard deviation 40 10 6 1.5 Coefficient of correlation =$\gamma$=0.9. Estimate the likely sales for a proposed advertisement expenditure of Rs. 10 crores.
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